diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index ea23e3e2f41..57cb0c5cd1d 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -505,14 +505,16 @@ void QTimer::singleShot(int msec, Qt::TimerType timerType, const QObject *receiv
 */
 
 /*!
-    \fn template <typename Functor> QMetaObject::Connection QTimer::callOnTimeout(Functor &&slot, Qt::ConnectionType connectionType = Qt::AutoConnection)
+    \fn template <typename Functor> QMetaObject::Connection QTimer::callOnTimeout(Functor &&slot)
     \since 5.12
 
-    Creates a connection of type \a connectionType from the timeout() signal
-    to \a slot, and returns a handle to the connection.
+    Creates a connection from the timer's timeout() signal to \a slot.
+    Returns a handle to the connection.
 
-    This method is provided for convenience.
-    It's equivalent to calling \c {QObject::connect(timer, &QTimer::timeout, timer, slot, connectionType)}.
+    This method is provided for convenience. It's equivalent to calling:
+    \code
+    QObject::connect(timer, &QTimer::timeout, timer, slot, Qt::DirectConnection);
+    \endcode
 
     \sa QObject::connect(), timeout()
 */
diff --git a/src/corelib/kernel/qtimer.h b/src/corelib/kernel/qtimer.h
index e77db27049d..b01cfdec9ab 100644
--- a/src/corelib/kernel/qtimer.h
+++ b/src/corelib/kernel/qtimer.h
@@ -89,7 +89,7 @@ public:
 
 #ifdef Q_QDOC
     template <typename Functor>
-    QMetaObject::Connection callOnTimeout(Functor &&slot, Qt::ConnectionType connectionType = Qt::AutoConnection);
+    QMetaObject::Connection callOnTimeout(Functor &&slot);
     template <typename Functor>
     QMetaObject::Connection callOnTimeout(const QObject *context, Functor &&slot, Qt::ConnectionType connectionType = Qt::AutoConnection);
 #else